I've had a couple Mephistos strains that the stalk had purple up and down all in them but that was all it did no defiencies showed but they stayed purple@Vorkosigan and @jingo, this purple thing happens around day 30, so im not sure it will be Potassium ....., at the time, i increase a bit the cal/mag sub and looks like she stopped the purple thing .... i did had this problem before,and many other people point me at cal/mag def.,, now im really confused !![]()
I've also heard cal mag defiencies but even feeding cal mag i always feed this the stalks and stems stayed purple but that's all that happened I've still not figured out mine,they was also showing before bloom the plants were lovely so until they cause me problems I'm not going to worry